WO2017003099A1

WO2017003099A1 - Beacon communication system having authentication processing function using transmission time difference of beacon signals, and authentication method therefor

Info

Publication number: WO2017003099A1
Application number: PCT/KR2016/005507
Authority: WO
Inventors: 정임영; 문재근
Original assignee: 경북대학교산학협력단
Priority date: 2015-06-30
Filing date: 2016-05-25
Publication date: 2017-01-05
Also published as: KR101671702B1

Abstract

The present invention relates to technology for performing authentication processing between devices in a beacon communication system, and to a beacon communication system having an authentication function using a transmission time difference of beacon signals and an authentication method therefor, the system and the method enabling a user terminal located in the vicinity of a beacon device to consecutively receive, two times, beacon signals generated from the beacon device so as to generate a random number corresponding to a transmission time difference of the beacon signals, and to provide the random number to the beacon device such that mutual authentication is processed, thereby improving communication efficiency by reducing the number of communicating times between devices for authentication processing, and enhancing a security function of authentication information by a third party. According to the present invention, the beacon communication system having an authentication processing function using a transmission time difference of beacon signals and the method therefor enable: a random number to be generated in a beacon device; beacon signals to be transmitted so as to have a time difference corresponding to the corresponding random number according to preset criteria, and with respect to this, authentication to be processed by comparing a random number provided from a user terminal with an autonomously generated random number; a user terminal to receive first and second beacon signals transmitted from the beacon device so as to generate a random number on the basis of a transmission time difference of the first and second beacon signals; and authentication request information including the random number to be transmitted to the beacon device.

Description

Beacon communication system having authentication processing function using transmission time difference of beacon signal and its authentication method

The present invention relates to a technique for performing authentication processing between devices in a beacon communication system, a user terminal located in the vicinity of the beacon device receives a beacon signal generated from the beacon device two times consecutively random number corresponding to the transmission time difference of the beacon signal By providing a random number to the beacon device to perform mutual authentication processing, reducing the number of communication between devices for authentication processing to improve communication efficiency, and enhance the security function of authentication information by third parties. It relates to a beacon communication system having an authentication function using the transmission time difference of the beacon signal, and an authentication method thereof.

Beacon (Beacon) is a short-range communication technology that enables the transmission of messages, mobile payments, etc. by using Bluetooth to find a user's location within a radius of 50 to 70m.

Recently, as Bluetooth 4.0 (Bluetooth Low Energy) standard enables the low power mode compared to the existing Bluetooth, interest in various communication systems using beacons is increasing.

Generally, a beacon communication system is comprised by the beacon apparatus 1, as shown in FIG. 1, and the user terminal 2 which performs Bluetooth communication in this communication range area | region R with this beacon apparatus 1. As shown in FIG.

The beacon apparatus 1 transmits a beacon signal to the peripheral user terminal 2 at a predetermined cycle, and the user terminal 2 performs a series of authentication procedures based on the beacon signal received from the beacon apparatus 1 to communicate with the root. Will be set.

2 is a diagram illustrating an authentication procedure performed in the beacon communication system. As shown in Fig. 2, the beacon apparatus 1 generates a beacon signal for notifying its position at a predetermined cycle (ST1). On the other hand, the user terminal 2 located in the vicinity transmits a response signal to the beacon apparatus 1 indicating that it is in the vicinity of the beacon apparatus 1 (ST2). The beacon apparatus 1 generates a random number based on the response signal from the user terminal 2 (ST3), and provides random number information for authentication to the beacon apparatus 1 (ST4). Thereafter, the user terminal 2 sends a response signal for the random number information received from the beacon apparatus 1 to the beacon apparatus 1 (ST5), and the beacon apparatus 1 based on this response signal based on the corresponding user terminal. By comparing and verifying random numbers generated in (2) (ST6), a series of authentication procedures are performed.

However, in performing the authentication procedure as described above, the beacon apparatus 1 generates a random number and provides the random number information to the user terminal 1 and the response information including random number information from the user terminal 1 to the beacon apparatus 1. The process of providing the bar may cause a problem that the third party acquires it and uses it maliciously because the random number information is wirelessly exposed, i.e., overlapped with the Bluetooth method.

In particular, when the beacon system is used for payment services, the leakage of random information by a third party may lead to economic losses.

Accordingly, the present invention was created in view of the above circumstances, and generates a random number based on the transmission time difference of the beacon signal provided from the beacon device in the user terminal, and provides it as a beacon device to authenticate by comparing the random number in the beacon device By using the verification process, the number of communication with each other for the authentication process is reduced to improve communication efficiency, and authentication using the transmission time difference of the beacon signal that minimizes the probability of leakage of random information by a third party. It is a technical object to provide an apparatus and a method thereof.

According to an aspect of the present invention for achieving the above object, and generates a random number in the beacon device, and transmits a beacon signal to have a time difference corresponding to the random number according to a predetermined criterion, which is provided from the user terminal The authentication process is performed by comparing the random number with the random number generated by the user, and the user terminal receives the first and second beacon signals transmitted from the beacon apparatus, and generates a random number based on the transmission time difference of the first and second beacon signals. A beacon communication system having an authentication processing function using a transmission time difference of a beacon signal, characterized by generating and transmitting authentication request information including this random number to the beacon apparatus, is provided.

In addition, the beacon apparatus generates a beacon signal generating module for generating a beacon signal by varying the transmission time difference between successive beacon signals, a beacon communication module for performing short-range wireless communication with the user terminal, and generates a random number Acquire the beacon signal transmission time difference corresponding to the random number is provided to the beacon signal generation module, and confirms whether the random number included in the authentication request information received from the user terminal is the same as the random number currently generated to authenticate the user terminal Provided is a beacon communication system having an authentication processing function using a transmission time difference of a beacon signal, characterized in that it comprises an authentication module for performing a process.

The user terminal may include a random number generation module for generating a random number corresponding to a difference in time between reception of a first beacon signal and a second beacon signal, a user communication module for performing wireless communication with the beacon device, and the beacon device. A control module for providing the first and second beacon signals continuously received at a time difference to the random number generation module, and generating authentication request information including random numbers provided from the random number generation module and providing the same to the beacon device. Provided is a beacon communication system having an authentication processing function using a transmission time difference of a beacon signal, characterized in that comprising a.

In addition, the beacon apparatus is provided with a beacon communication system having an authentication processing function using the transmission time difference of the beacon signal, characterized in that it comprises a look-up table that stores the beacon signal transmission time difference for each random number.

In addition, the beacon device is configured to transmit a beacon signal by setting a different beacon signal transmission time difference through a combination of date or day or year / month / day / hour / minute / second for the same random number A beacon communication system having an authentication processing function using a signal transmission time difference is provided.

In addition, beacon signal generation reference unit information is set in advance in the user terminal, and the difference in transmission time between the first beacon signal and the second beacon signal is quantized based on the reference unit information. Provided is a beacon communication system having an authentication processing function using the transmission time difference of the beacon signal, characterized in that configured to calculate the.

In addition, the beacon apparatus is provided with a beacon communication system having an authentication processing function using the transmission time difference of the beacon signal, characterized in that configured to perform the authentication process for one user terminal with respect to one beacon signal transmission time difference.

In addition, according to another aspect of the present invention for achieving the above object, an authentication processing method in a beacon communication system and the beacon device and the user terminal located in a predetermined area is configured to perform short-range wireless communication. In the first step of generating an authentication random number in the beacon device, and wirelessly transmitting a beacon signal to have a time difference corresponding to the authentication random number in accordance with a predetermined criterion, and a second wireless transmission from the beacon device in the user terminal A second step of continuously receiving the first and second beacon signals, and calculating a transmission time difference for the first and second beacon signals at the user terminal, and generating a user random number corresponding to the time difference between the beacon signal transmissions. Step 3, the fourth terminal for generating the authentication request information including the user random number in the user terminal to wirelessly transmit to the beacon device And a fifth step of comparing the user random number and the authentication random number included in the authentication request information received from the user terminal in the beacon apparatus to perform an authentication check process for the corresponding user terminal. An authentication method using a transmission time difference of a beacon signal in a communication system is provided.

In the first step, the beacon apparatus is provided with an authentication method using the transmission time difference of the beacon signal in the beacon communication system, characterized in that for generating a beacon signal by varying the transmission time difference between successive beacon signals.

In addition, in the first step, the beacon apparatus transmits the beacon signal by differently setting the beacon signal transmission time difference through a combination of date or day or year / month / day / hour / minute / second for the same authentication random number. An authentication method using a transmission time difference of a beacon signal in a beacon communication system is provided.

In the third step, the user terminal is configured to calculate a beacon signal transmission time difference by quantizing the reception time difference between the first beacon signal and the second beacon signal based on preset beacon signal generation reference unit information. An authentication method using a transmission time difference of a beacon signal in a beacon communication system is provided.

Further, in the fifth step, when the beacon apparatus completes the authentication process for one user terminal for one beacon signal transmission time difference, the authentication process from another user terminal for the same beacon signal transmission time difference is not performed. An authentication method using a transmission time difference of a beacon signal in a beacon communication system is provided.

According to the present invention, by generating a random number based on the beacon signal transmission time difference in the user terminal to provide a beacon device, the wireless section transmission process of the random number information is reduced to improve the communication efficiency, as well as the user terminal requesting authentication Since the signal transmission to the beacon is less than once, the energy consumption can be reduced.

In addition, by reducing the radio communication step of the random number information for authentication between devices, and by performing authentication for one user terminal only for one beacon signal transmission time difference, by minimizing the probability of leakage of random information by a third party security You can improve your sex. For this reason, it becomes possible to apply and implement easily also to the payment system which requires security.

1 is a schematic view of a general beacon communication system.

2 is a flowchart illustrating an authentication process in a conventional beacon communication system.

3 is a diagram showing functionally separated internal configuration of a beacon communication system having an authentication function using a time difference of beacon signal transmission according to the first embodiment of the present invention;

4 is a view for explaining a beacon signal transmission method in the beacon signal generation module 110 shown in FIG.

FIG. 5 is a flowchart for explaining an operation of a beacon communication system having an authentication function using a time difference in transmission of a beacon signal shown in FIG.

Description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as limited by the embodiments described in the text. That is, since the embodiments may be variously modified and may have various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea. In addition, the objects or effects presented in the present invention does not mean that a specific embodiment should include all or only such effects, the scope of the present invention should not be understood as being limited thereby.

Hereinafter, an authentication apparatus and a method using a transmission time difference of a beacon signal according to the present invention will be described with reference to the accompanying drawings.

3 is a view showing functionally separated internal configuration of a beacon communication system having an authentication function using a transmission time difference of a beacon signal according to the first embodiment of the present invention.

As shown in FIG. 3, in a beacon communication system having an authentication function using a transmission time difference of a beacon signal, the beacon apparatus 100 and a neighboring user terminal 200 located within a predetermined distance from the beacon apparatus 100 are short-range wireless communication. For example, to perform Bluetooth communication.

The beacon apparatus 100 is configured to include a beacon signal generation module 110, a beacon communication module 120, and the authentication module 130.

The beacon signal generation module 110 transmits a beacon signal by varying the transmission time difference between successive beacon signals based on the beacon signal transmission time provided from the authentication module 130. At this time, the beacon signal includes access information for indicating the location of the beacon apparatus 100. For example, the transmission time of the current beacon signal is differently set within the preset beacon signal transmission period, but the transmission time difference between the first beacon signal and the second beacon signal is different from the transmission time difference between the second beacon signal and the third beacon signal. Beacon signal transmission time is set. This is to set the transmission time difference between different consecutive beacon signals as a reference for random number generation.

The beacon communication module 120 performs short-range wireless communication with the user terminal 200. Preferably, BLE (Bluetooth Low Energy) communication according to the Bluetooth 4.0 protocol may be performed.

The authentication module 130 generates an authentication random number, calculates a beacon signal transmission time corresponding to the authentication random number generated according to a preset standard, and provides the beacon signal generation module 110 to the beacon signal generation module 110. Set beacon signal transmission time of. At this time, the authentication module 130 is configured to include a look-up table that stores the beacon signal transmission time difference for each of the authentication random number through the beacon signal generation module 110 to send a beacon signal transmission time corresponding to the authentication random number Can be controlled.

In addition, the authentication module 130 checks whether the user random number included in the authentication request information received from the user terminal 200 through the beacon communication module 120 and the authentication random number corresponding to the current beacon signal transmission time difference is the same. By performing the authentication process for the corresponding user terminal 200.

In addition, when the authentication process for one user terminal 200 is normally completed, the authentication module 130 does not perform the authentication process for the corresponding beacon signal. That is, the authentication module 130 performs a normal authentication process only for one user terminal 200 for the time difference of one beacon signal transmission.

Meanwhile, in FIG. 3, the user terminal 200 includes a user random number generation module 210, a user communication module 220, and a control module 230. Here, the user terminal 200 may be various types of terminals having a Bluetooth communication function with the beacon device 100, for example, a smart phone, an audio device, and the like.

The user random number generation module 210 generates a user random number corresponding to a transmission time difference between the previous beacon signal and the current beacon signal. In this case, the user random number generation module 210 may store in advance a calculation algorithm for generating the same random number as the beacon apparatus 100 with respect to the transmission time difference of the beacon signal in advance. In addition, the user random number generation module 210 may store a lookup table in which user random numbers corresponding to the transmission time difference are stored in advance to obtain a user random number through the lookup table.

The user communication module 220 performs short-range wireless communication with the beacon device 100. Preferably, BLE (Bluetooth Low Energy) communication according to the Bluetooth 4.0 protocol may be performed.

The control module 230 receives and processes the beacon signal received from the beacon device 100 through the user communication module 220 two times in succession and provides it to the user random number generation module 220. It is configured to generate authentication request information including the user random number generated by the user random number generation module 220 to the beacon device 100 through the user communication module 220.

In addition, when the authentication completion information is not received from the beacon device 100 within a predetermined time with respect to the authentication request to the beacon device 100, the control module 230 transmits the time difference based on the beacon signal received continuously afterwards. New authentication request information including the user random number corresponding to the wireless transmission to the beacon device (100). That is, the user terminal 200 performs the re-authentication request process to the beacon device 100.

Meanwhile, in another embodiment of the present invention, in generating the beacon signal in the beacon apparatus 100, as illustrated in FIG. 4, the first to Nth beacon signals BC1, BC2, BC3, BC4, The beacon signal can be transmitted so that the transmission time differences T1, T2, T3, ... are different from each other.

In addition, according to another embodiment of the present invention, the beacon signal transmission time difference corresponding to the same random number may be configured to have different values by a combination of day, month, or year, month, day, hour, minute, and second. Can be. For example, the beacon signal transmission time difference may be set to 5 µs for a "128" random number on Monday, and the beacon signal transmission time difference may be set to 10 µs for a "128" random number on a Monday. This is to minimize the probability of hacking of random numbers due to the generation of beacon signals with the same transmission time difference for the same random number.

In addition, according to another embodiment of the present invention, the user terminal 200 transmits a beacon signal by performing a quantization process on a beacon signal transmission time difference in consideration of a signal delay between the beacon apparatus 100 and the user terminal 200. The time difference can be calculated. That is, the beacon signal transmission time difference is promised between the user terminal 200 and the beacon apparatus 100 so as to be set in advance by a predetermined unit, for example, a multiple of 5 μs, and the user terminal 200 has a currently calculated beacon signal transmission time difference of " 7 μs ”, an approximation may be applied to generate a user random number for“ 5 μs ”, and when the beacon signal transmission time difference is“ 9 μs ”, a user random number for“ 10 μs ”may be generated.

Next, the authentication method using the transmission time difference of the beacon signal in the beacon communication system having the above configuration will be described with reference to the flowchart shown in FIG.

First, the beacon apparatus 100 generates an authentication random number and calculates a beacon signal transmission time corresponding to the authentication random number generated according to a preset criterion (ST10). In this case, the beacon apparatus 100 may obtain a beacon signal transmission time corresponding to the authentication random number from the previously stored lookup table.

The beacon apparatus 100 generates a beacon signal and wirelessly transmits the beacon signal. That is, the beacon signal is transmitted to the user terminal 200 located within a predetermined distance from the beacon device 100. At this time, the beacon signal includes beacon device access information for communicating with the beacon device 100. As shown in FIG. 4, the beacon signal transmission time may wirelessly transmit the beacon signal such that the transmission time difference between successive beacon signals is different. In addition, the beacon apparatus 100 may transmit a beacon signal to have a different beacon signal transmission time difference for each day of the week.

Among the user terminals 200 located within a predetermined distance from the beacon apparatus 100, the user terminal 200 that wants to communicate with the beacon apparatus 100 receives the first and second beacon signals provided from the beacon apparatus 100. Receive continuously (ST20, ST30). That is, the user terminal 200 receives a first beacon signal provided from the beacon device 100 when there is a beacon information request from the user, and then receives a second beacon signal provided from the beacon device 100.

The user terminal 200 calculates a transmission time difference between successive beacon signals received from the beacon apparatus 100 and generates a user random number corresponding thereto (ST40). For example, when the beacon signal transmission time difference is 5 s, a user random number "128" is generated. In this case, the user terminal 200 may calculate the beacon signal transmission time difference by quantizing the current beacon signal transmission time difference based on the beacon signal generation reference unit information set in consideration of the signal delay with the beacon device 100.

The user terminal 200 generates authentication request information including a user random number and wirelessly transmits the authentication request information to the beacon apparatus 100 (ST50). The authentication request information includes a user random number and beacon device access information.

The beacon apparatus 100 compares the user random number received from the user terminal 200 with the authentication random number and performs an authentication verification process for the corresponding user terminal 200 (ST60).

In this case, the beacon apparatus 100 generates authentication completion information when the user random number and the authentication random number match, and wirelessly transmits to the corresponding user terminal 200. At this time, the authentication completion information includes a normal authentication message and the user access information.

On the other hand, when the authentication for one user terminal 200 is normally completed based on a random number corresponding to the first and second beacon signal transmission time difference, as described above, the same first and second beacon signal transmission time difference after the authentication is completed The authentication process is not performed for the other user terminal 200 which performs the authentication request by using the user random number corresponding to. For example, when a plurality of pieces of authentication request information are received with respect to random number information corresponding to the first beacon signal transmission time difference T1 by the first beacon signal BC1 and the second beacon signal BC2 in FIG. If normal authentication is completed for the user terminal, the remaining authentication request information is ignored.

In this case, the beacon apparatus 100 provides authentication completion information to the first user terminal when the normal authentication is completed for the first user terminal that has been authenticated using the corresponding random number (ST70). Therefore, if another user terminal requesting authentication using a random number corresponding to the authenticated beacon signal transmission time difference does not receive authentication completion information until a certain time, the user beacon is generated by calculating the time difference of the beacon signal transmission received thereafter. Based on this, a series of authentication request processing for performing the authentication request to the beacon device 100 is performed again.

That is, according to the present invention, the beacon apparatus continuously transmits a beacon signal informing its position with a time difference, and a user terminal located in the vicinity is a random number corresponding to the time difference of the beacon signal continuously received from the beacon apparatus. Generates and performs an authentication request with the beacon device using it. In addition, the beacon apparatus performs authentication for the corresponding user terminal based on the random number provided from the user terminal.

Therefore, according to the present invention, the beacon apparatus does not wirelessly transmit a random number for authentication to the user terminal, but performs authentication based on the random number provided from the user terminal, whereby only one wireless transmission of the random number for authentication is performed. It is possible to reduce the problem caused by leakage of authentication information.

Claims

Generates a random number in the beacon device, transmits the beacon signal to have a time difference corresponding to the random number according to a predetermined criterion, and performs the authentication process by comparing the random number provided from the user terminal with its own generated random number ,

The user terminal receives the first and second beacon signals transmitted from the beacon apparatus, generates a random number based on the transmission time difference of the first and second beacon signals, and generates authentication request information including the random number. Beacon communication system having an authentication processing function using the transmission time difference of the beacon signal, characterized in that configured to transmit to.
The method of claim 1,

The beacon apparatus includes a beacon signal generating module for generating a beacon signal by varying a transmission time difference between successive beacon signals;

Beacon communication module for performing short-range wireless communication with the user terminal,

In addition to generating a random number, obtaining a beacon signal transmission time difference corresponding to the generated random number and providing it to the beacon signal generating module, whether the random number included in the authentication request information received from the user terminal is the same as the random number Beacon communication system having an authentication processing function using the transmission time difference of the beacon signal, characterized in that it comprises an authentication module for performing the authentication process for the user terminal to check.
The method of claim 1,

The user terminal includes a random number generation module for generating a random number corresponding to the difference in the reception time between the first beacon signal and the second beacon signal;

A user communication module for performing wireless communication with the beacon device on the basis of;

Providing first and second beacon signals consecutively received from the beacon apparatus to the random number generation module, and generating authentication request information including random numbers provided from the random number generation module to the beacon apparatus. Beacon communication system having an authentication processing function using the transmission time difference of the beacon signal, characterized in that it comprises a control module to provide.
The method of claim 1,

The beacon apparatus is a beacon communication system having an authentication processing function using the transmission time difference of the beacon signal, characterized in that it comprises a look-up table that stores the beacon signal transmission time difference corresponding to the random number.
The method of claim 1,

The beacon device is configured to transmit a beacon signal by setting a different beacon signal transmission time difference through a combination of date or day or year / month / day / hour / minute / second for the same random number. Beacon communication system having an authentication processing function using the transmission time difference.
The method of claim 1,

Beacon signal generation reference unit information is set in advance in the user terminal,

Authentication using the transmission time difference of the beacon signal, characterized in that configured to calculate the transmission time difference between the first beacon signal and the second beacon signal by quantizing the reception time difference between the first beacon signal and the second beacon signal based on the reference unit information Beacon communication system having a processing function.
The method of claim 1,

The beacon apparatus is a beacon communication system having an authentication processing function using the transmission time difference of the beacon signal, characterized in that configured to perform the authentication process for one user terminal for the time difference of one beacon signal transmission.
A beacon apparatus and a user terminal located in a predetermined area with the beacon apparatus, the authentication processing method in a beacon communication system, configured to perform short-range wireless communication,

A first step of generating an authentication random number in the beacon apparatus and wirelessly transmitting a beacon signal to have a time difference corresponding to the authentication random number according to a preset criterion;

A second step of continuously receiving first and second beacon signals wirelessly transmitted from the beacon apparatus in the user terminal;

A third step of calculating a transmission time difference of the first and second beacon signals in the user terminal and generating a user random number corresponding to the time difference of the beacon signal transmission;

A fourth step of generating authentication request information including a user random number from the user terminal and wirelessly transmitting the authentication request information to the beacon apparatus;

In the beacon communication system comprising a fifth step of performing the authentication verification process for the user terminal by comparing the user random number and the authentication random number included in the authentication request information received from the user terminal in the beacon device Authentication method using transmission time difference of beacon signal of.
The method of claim 8,

In the first step, the beacon apparatus generates a beacon signal by varying the transmission time difference between successive beacon signals, characterized in that using the transmission time difference of the beacon signal in the beacon communication system.
The method of claim 8,

In the first step, the beacon device transmits a beacon signal by setting a different beacon signal transmission time difference through a combination of date or day or year / month / day / hour / minute / second for the same authentication random number. Authentication method using the transmission time difference of the beacon signal in the beacon communication system.
The method of claim 7, wherein

In the third step, the user terminal is configured to calculate the beacon signal transmission time difference by quantizing the reception time difference between the first beacon signal and the second beacon signal based on the preset beacon signal generation reference unit information. Authentication method using transmission time difference of beacon signal in system.
The method of claim 7, wherein

In the fifth step, the beacon apparatus does not perform authentication processing from another user terminal for the same beacon signal transmission time difference when one beacon signal transmission time difference is completed. Authentication method using the transmission time difference of the beacon signal in the beacon communication system.